If you search for 6800 configurations and optimizations and eventually you’ll arrive here:
In my experience, until you run the scripting above, you are better off
Core 1275-1300 with core voltage 650
Mem 1060-1074 with mem controller voltage 750 and memory voltage 1250
fan 66%
SoC will either be right or rarely stick until you run the scripting
Ditch the DPM setting entirely
Net: 1275 Core / 1060 Mem can produce over 61.5Mhs with TRM on Hive, so they are not your hard limiters.